Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x^2+3)/(x^2+1)=2
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Equation 4*x-8=x+1
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Equation -4x+9=-19
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Equation -4x+3=2x
- Express {x} in terms of y where:
- 12*x+7*y=15
- -2*x-9*y=3
- -18*x-4*y=-19
- -10*x-10*y=-8
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Identical expressions
- 12x-(5x- eight)= eight + seven
- 12x minus (5x minus 8) equally 8 plus 7
- 12x minus (5x minus eight) equally eight plus seven
- 12x-5x-8=8+7
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Similar expressions
- 12x-(5x-8)=8-7
- 12x+(5x-8)=8+7
- 12x-(5x+8)=8+7
12x-(5x-8)=8+7 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$7 x = 7$$
Divide both parts of the equation by 7
We get the answer: x = 1
12*x-(5*x-8) = 8+7
Expand brackets in the left part
12*x-5*x+8 = 8+7
Looking for similar summands in the left part:
8 + 7*x = 8+7
Looking for similar summands in the right part:
8 + 7*x = 15
Move free summands (without x)
from left part to right part, we given:
$$7 x = 7$$
Divide both parts of the equation by 7
x = 7 / (7)
We get the answer: x = 1